Hose-coupling



(No Model.)

J. 1:1{SEWALL- HOSE GOUPLING.

Patented Feb. 1l, 1.8901,

UNITED STATES `PATENT OEEICE.

JAMES H. SEVVALL, OF PORTLAND, MAINE, ASSIGN OR TO Tl-IE CONSOLIDATED CAR HEATING COMPANY, OE ALBANY,

NEV YORK.

HOSE-COUPLING.

SPECIFICATION forming part of Letters Patent No. 421,110, dated February 11, 1890.

Application led November 2, 1887. Serial No. 254,065. (No model.) Patented in Canada November 30, 1887, No. 28,117, and in England January 2,1888,No.35.

To all whom t may concern.-

Be it known that I, JAMES H. SEWALL, of

Portland, county of Cumberland, State of Maine, have invented an Improvement inv 5 Hose-Couplings, (for which I have received Letters Patent .in England, No. 35, January 2, 1888, and in Canada,-No. 28,117, November 30, 1887,) of which the following description,

in connection with the accompanying drawro ings, is aspeciiication, like letters on the drawings representing like parts.

This invention has for its object to construct a hose-coupling especially adapted for connecting hose between two cars or between I 5 a car and a locomotive for conveying steam from the locomotive-boiler to the cars, and is an improvement Yupon the hose-coupling shown in United States Patent N o. 363,553, granted to me May 24, 1887.

zo My invention consists in a two-part hosecoupling composed of two like halves or portions, each having a steam-passage through it and a groove or recess around the said steam-passage to present an air-space adja- 25 cent to said steam-passage to prevent or to eectually retard condensation of steam; also, in details of construction, substantially as will be hereinafter more fully pointed out.

Figure 1 shows in top view a hose-coupling 3o embodying' this invention, one half being shown in full lines and the other half inl dotted lines; Fig. 2, a longitudinal section of the coupling shown in Fig. 1, and Fig.`3 a vertical section of a spring-controlled valve 3 5 controlling the drip-passage.

The two halves I N of the coupling herein shown being substantially alike, only one Will be described.

The half or portion I of the coupling is 4o composed of the shell or casing having attached to' or cast integral with it the nozzle the whole having a passage or opening through it for steam. The shell or main body of the portion I is provided around the 45 steam-passage with a groove or recess 2,

(having at one side a drip passage or opening 13) which presents an airspace adjacent to the steam-passage, which prevents or effectually retards condensation of steam. The 5o end portion or piece 111, having a hole through 'form a hinge-joint about which it and reamed out to reoeivea flanged gasketk 12, and also to fit upon the end of the shell as best shown in Fig. 2, is secured thereto by screws 13, to thereby form a rigid part of the shell. The shell is provided at one side 55 with a projection 4, extending in the arc ot' a circle about the hinged joint-connection to be described as a center, and the end piece or portion 10, attached to the shell, is provided at the opposite side with a broad 6c extension 5, which is provided with a recess 6 of suitable shape to receive the projection 1, the recess formed in the extension being of such shape as to leave a rib or ange 7, which enters the groove 8 of 65 the projection 4 of the opposing half of the coupling. The abutting face of the end piece 10 is provided at its lower side with a transverse rib 15, and in line with or in continuation of said rib the end portion is 7o grooved, 'as at 16, to receive the rib of the opposing half of the coupling corresponding to the rib 15, While the said rib 15 enters the groove in the opposing half of the coupling corresponding to the groove 111, so that the 75 two ribs and grooves (zo-operating together the sections or halves :may be turned as a center in one direction only-mnamely, upward.

Thelocking devices herein shown lock the 8o coupling against lateral and downward separation, thereby only permitting it to be separated by an upward movement.

The locking devices herein shown are also shown in the patent referred to, and also in 85 the application, Serial No. 237,561, iiled by me May 9, 1887, to which reference may be had, so I do not herein lay claim thereto.

The she1l is tapped at its under side coincident with the opening a to receive a nip- 9o ple 40, passing through the opening 1, which is somewhat larger in diameter than the nipple, and a small steam-trap 45 is secured to the nipple, to thereby provide an automatic controlling device .for the drip-passage.

In lieu of the trap, aspring-controlled valve 11-such as shown in Fig. o1-may be used, it being screwed into the shell to communicate with the steam-passage.

I have herein shown the hose to which the roo halves ot' the coupling are attached as provided vith rings, as t4, having eyes fir, to which is attached a chain 43, to be connected to any stationary part of the platform, and thereby keep the halves of the coupling from hanging down sufficiently to strike thesleepers or a guard-rail.

In my patent, No. 375,572, dated December 27,1887, and which was based upon an application concurrent With this, I have reserved for this application the broad claim for the generic invention of the two cases, and have claimed only the species therein shown-viz., a two-part hose-coupling composed of like halves or portions, each of which is composed of a nozzle having a steamway and an attached surrounding shell,between which nozzle and shell an air space or recess is provided. In the present case I do not use thc nozzle, neither do I use the external shell in the specific construction shown, although I intend to claim, and do claim herein, broadly, a coupling constructed in either way, or, however constructed, in which the steam-passage is surrounded by an air space or recess in the couplingitself, as distinguished from a coupling which is jacketed by means of an extraneous structurethat is to say, I herein claim the invention common to both the device of this patent and of the construction shown in this case coextensively with the reservation clause beginning on line 103 of page land ending online 5 of page 2 oi' the specification of that patent, excepting as said claims are inherently inapplicable to the patent.

I claim-- the invention of 1. A two-part hose-coupling composed of like halves or portions, cach half having a steam-passage through-it and an air-space surrounding the steam-passage, substantially as described.

2. The combination oi the two like halves, each composed of a shell/i, having a steam-passage through it, andan air-space t2 surrounding the steam-passage, the gasket t, and the end portion filo, recessed to receive the gasket and securely iittcd to the end of the shell, substantially as described.

3. The combination of like halves, each composed of a shell i, having a steam-passage through it and a drip-passage leading from the steam-passage at the lowest part thereof for the escape of Water of condensation, and a controlling device for the drip-passage, an air-space surrounding the said steam-passage, and an outlet for said air-space, substantially as described.

l. A two-part hose-coupling composed olf like halves, each having a continuous unobstructed steam-passage through it, and locking devices to connect the two for service, and each having in and as part oi itself an air-space surrounding the steam-passage, as distinguished from a jacket applied externally to the coupling, substantially as described.

In testimony whereof I have signed my name to this specification in the presence of two subscribing Witnesses,

JAMES ll. SEWIALL.

Witnesses:

FRED V. Cnasn, Jos. T. Woo'Dumnn. 

